MZY LLC 5 x Bristle Brush for iRobot Roomba 600 700 Series Vacuum Cleaning Robots Roomba 620 630 650 660 680 760 770 780 790 MODEL: Compatible with iRobot Roomba 600 700 Series 600 620 630 650 660 595 700 760 770 780 790 PACKAGE: 5 x Bristle Brush ADVANTAGE: High effeciency to reduce dust, pollen and other allergens. And remove dust and pet hair easily SUGGESTION: Roomba vacuum parts should be replaced every 2 - 3 months to keep your Roomba operating at peak performance 100% MONEY-BACK GUARANTEE: MZY LLC are backed by 100% guarantee that you are fully satisfied with your product or get your money back.